help - Toyota Nation Forum : Toyota Car and Truck Forums

supra7mgte · 08-18-2009, 02:48 AM

hi i have a 1989 toyota supra turbo and i just replased the head on it and i timed it back to factory and now the motor wont go over 3000 rpm and the boost gauge shoots up if anyone can help plz do thanks

***bgrieger*** · 08-18-2009, 09:14 AM

So, what have you tested and ruled out as possible problems. There are so many things that you could have done wrong it would take all day to name them.

Jeeves · 08-18-2009, 10:41 AM

Sounds like you didn't plug the turbo wastegate in, and/or have a large boost leak (check your hose clamps). The 3000 RPM sounds more like Air Flow Meter. Make sure it's plugged in.

supra7mgte · 08-18-2009, 07:50 PM

ok thanks i know im missing my nox sencor and the massflow is brand new but befor i timed it back to the factory setting to 10 degress it was at 15 and it would rev passed 5000 but had no balls going forward but touns in rev im just stumped